Home / 13,970.67-19,276.14-8,864.33

Finding the Fourth Proportional to 13,970.67, 19,276.14 and 8,864.33

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Solution

The fourth proportional to 13,970.67, 19,276.14 and 8,864.33 is: 12,230.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.67 : 19,276.14 = 8,864.33 : x
  2. Step 2: Convert to fraction form
    13,970.67/19,276.14 = 8,864.33/x
  3. Step 3: Cross multiply
    13,970.67x = 19,276.14 × 8,864.33
  4. Step 4: Simplify right side
    13,970.67x = 170,869,969.71
  5. Step 5: Solve for x
    x = 170,869,969.71/13,970.67
  6. Step 6: Final answer
    x = 12,230.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.